* Implement basic equivocations detection loop (#2367)

* FinalityProofsBuf adjustments

- store a Vec<FinalityProof>
- transform prune `buf_limit` to Option

* FinalityProof: add target_header_hash()

* Target client: implement best_synced_header_hash()

* Implement first version of the equivocations detection loop

* Address code review comments

* Leftover

* polkadot-staging adjustments

* Split FinalitySyncPipeline and SourceClient

* Move some logic to finality_base

* Add empty equivocation detection clients

* Add equivocation reporting logic to the source client

* Use convenience trait for SubstrateFinalitySyncPipeline

* Define JustificationVerificationContext for GRANDPA

* Equivocation source client: finality_verification_context()

* Equivocation source client: synced_headers_finality_info()

* reuse HeaderFinalityInfo

* Define EquivocationsFinder

* Fix spellcheck

* Address review comments

* Avoid equivocations lookup errors

* store block number ++ state root in parachains pallet

* fixed parachains finality APIs

* (test commit)

* removed test code

* deduplicated code a bit

* removed commented code

* spelling

* Update modules/parachains/src/lib.rs

Co-authored-by: Adrian Catangiu <[email protected]>

* Update modules/parachains/src/lib.rs

Co-authored-by: Adrian Catangiu <[email protected]>

* Update modules/parachains/src/mock.rs

Co-authored-by: Adrian Catangiu <[email protected]>

* added comment

Co-authored-by: Adrian Catangiu <[email protected]>

* SignedBlock: get justification by consensus engine id

* Define ConsensusLogReader

Making the check for authority changes more generic

* cod review changes

* Move some logic to RestartableFinalityProofsStream

* Move some logic to `Transaction`

* Avoid unnecessary split_off

* clipy

* revert some fixes that newest clippy reports as issues, but older does not

* read extrinsic dispatch result for mined transaction

* commit for the history

* Revert "commit for the history"

This reverts commit 99341b04.

* Revert "read extrinsic dispatch result for mined transaction"

This reverts commit 662b776c.

* check for successfult transaction in finality relay

* check for successful transaction in parachains relay

* TrackedTransactionStatus ->TrackedTransactionStatus<HeaderId>

* check for successful transaction in messages relay

* fix compilation

* message_lane_loop_is_able_to_recover_from_unsuccessful_transaction

* fixed too-complex-type clippy error

* aaand compilation

* TransactionInvalidationTracker

* TransacitonInvalidationTracker -> TransactionTracker

* change sign_transaction method

* clippy and spelling

* removed comment

* more transactiontracker tests

* stalls_when_transaction_tracker_returns_error

* remove test code

* remove "impl TransactionTracker for ()"

* enum TrackedTransactionStatus

* test TransactionTracker in on_transaction_status

* do_wait

* change sign_transaction method

* clippy

* rustup update && clippy

* remove redudnant clone

* fix clippy warnings

* try to reenable proper clippy on CI

* fix clippy error

* more Eqs

* ignore clippy::derive-partial-eq-without-eq - clippy seems to be broken now :/

* using_same_fork metric in finality relay

* support `using_different_forks` in messages relay

* added dashboards and alerts

* lockfile

* unify metric names

* refactor standalone metrics

* headers sync metrics

* post-merge fix

* fix compilation

* fmt

* fix dashboards

* fix local dashboards

* update Rococo/Wococo runtime version

* remove commented code

* fixed grumbles

* fmt

* fixed widget names

* Decouple `relays/client-substrate` from `headers_relay`
* Remove `blocks_in_state` from `SyncLoopMetrics`
    This metric was only relevant for PoA <> Substrate bridge.
* Move `sync_loop_metrics.rs` to `relays/finality`
* Remove unused `SyncLoopMetrics::update()`
* Hook up SyncLoopMetrics to finality_loop
* Delete now unused `relays/headers`

Signed-off-by: acatangiu <[email protected]>

* Unify error enums in substrate and ethereum clients with `thiserror`

Related to https://github.com/paritytech/parity-bridges-common/issues/857

* Add license pre-amble

* rustfmt

* Fix spelling

* Alter gitlab.

* Use substrate's rustfmt.toml

* cargo +nightly fmt --all

* Fix spellcheck.

* cargo +nightly fmt --all

* format.

* Fix spellcheck and fmt

* fmt?

* Fix spellcheck

Co-authored-by: Tomasz Drwięga <[email protected]>

* I'm just trying to do my job

* spelling

* read justifications from stream using channel + task that fills that channel

* Arc<Mutex> -> Mutex

* shared conversion rate metric value

* clippy

* CI: do not trust this CI 1

* CI: don't want to trigger unneded statuses

* CI: debug 1

* CI: new CI

* CI: temp allow failure

* CI: exclude paths

* doc: check if docs won't trigger pipelines

* doc: check hybrid changes pipeline

* doc: do not push excluded files together with others

* CI: undebug fmt

* CI: better deny

* CI: fix deny and spellcheck

* CI: global backtrace

* CI: deny config

* CI: publishing

* Dockerfile: metadata fix [skip ci]

* CI: revert me

* CI: debug bash

* CI: mv ci.Dockerfile; fix buildah bug

* CI: fix artifact name

* Dockerfile: fix context

* CI: separate deny check licenses

* CI: when to run

* CI: unneded stuff in these Dockerfiles

* CI: merged test-refs and build-refs

* CI: test-build optimizations

* CI: changes, web, scheduled pipelines now work as intended

* CI: use tested production CI image

* CI: substitute GHA

* Fix clippy.

* Moar clippy fixes.
...

* always run on-demand headers relay in complex relay

* fix compilation

* do not spawn additional task for on-demand relays

* compilation

* prefix in relay loops logs

* fmt

* complex headers+messages relay

* post-merge fix

* fix + test issue with on-demand not starting

* administrative metrics

* fmt

* fix compilation

* fix compilation again

* and another one

* remove GenericLoopMetrics

* chttp -> isahc

* remove redundant marker

* not about price metrics

* fmt

* Stop passing raw encoded justifications to pallet API

By having the API accept a struct-ified justification we are able to
better utilize the justifications fields for weight calculations.

* Update relayer code to use decoded justifications

* Add justification to `expect()` statement

* Fix some imports

* Make justification wrapper contain decoded justification

* Rename some fields

* Get rid of warnings

* Appease Clippy

* Only decode justification once at init time

* Remove unnecessary method

* Remove justification wrapper

This became kinda unnecessary since we could implement the FinalityProof
trait on GrandpaJustification directly.

* slightly changed relay loop initialization

* git mv

* clippy

* more clippy

* loop_run -> run_loop

* review and clippy

* clippy

* Remove chains.

* Move relay clients.

* Flatten generic.

* Fix fmt.